"""
Version A of the password example: the insecure one.

Companion to "LLMs Can Write Code, but Cannot Read Your Mind"
https://hed.am/briefs/llms-can-write-code-but-cannot-read-your-mind/

    python3 password-random.py

`random` is a Mersenne Twister, built for simulation and modelling. It is
seeded from the OS at import, so the output does differ between runs, which
is what makes this one hard to catch: it looks random, and for a simulation
it is random enough. It does not, however, withstand an observer. The
generator's state is 624 32-bit words, and about that many consecutive
outputs are enough to reconstruct it and predict every value that follows.
Compare with password-secrets.py, which differs by one import.
"""

# Version A - looks fine, absolutely wrong for security
import random, string

ALPHABET = string.ascii_letters + string.digits


def password(n: int = 16) -> str:
    return ''.join(random.choice(ALPHABET) for _ in range(n))


print(password())